Enable more clippy lints (#6853)

* Follows https://github.com/emilk/egui/pull/6848

crates/egui_extras/src/datepicker/mod.rs

@@ -2,7 +2,7 @@ mod button;
 mod popup;
 
 pub use button::DatePickerButton;
-use chrono::{Datelike, Duration, NaiveDate, Weekday};
+use chrono::{Datelike as _, Duration, NaiveDate, Weekday};
 
 #[derive(Debug)]
 struct Week {

crates/egui_extras/src/datepicker/popup.rs

@@ -1,4 +1,4 @@
-use chrono::{Datelike, NaiveDate, Weekday};
+use chrono::{Datelike as _, NaiveDate, Weekday};
 
 use egui::{Align, Button, Color32, ComboBox, Direction, Id, Layout, RichText, Ui, Vec2};
 

crates/egui_extras/src/layout.rs

@@ -1,4 +1,4 @@
-use egui::{emath::GuiRounding, Id, Pos2, Rect, Response, Sense, Ui, UiBuilder};
+use egui::{emath::GuiRounding as _, Id, Pos2, Rect, Response, Sense, Ui, UiBuilder};
 
 #[derive(Clone, Copy)]
 pub(crate) enum CellSize {

crates/egui_extras/src/lib.rs

@@ -26,7 +26,7 @@ mod table;
 pub use crate::datepicker::DatePickerButton;
 
 #[doc(hidden)]
-#[allow(deprecated)]
+#[expect(deprecated)]
 pub use crate::image::RetainedImage;
 pub(crate) use crate::layout::StripLayout;
 pub use crate::sizing::Size;

crates/egui_extras/src/loaders/image_loader.rs

@@ -77,7 +77,7 @@ impl ImageLoader for ImageCrateLoader {
         }
 
         #[cfg(not(target_arch = "wasm32"))]
-        #[allow(clippy::unnecessary_wraps)] // needed here to match other return types
+        #[expect(clippy::unnecessary_wraps)] // needed here to match other return types
         fn load_image(
             ctx: &egui::Context,
             uri: &str,

crates/egui_extras/src/loaders/svg_loader.rs

@@ -30,7 +30,7 @@ fn is_supported(uri: &str) -> bool {
 impl Default for SvgLoader {
     fn default() -> Self {
         // opt is mutated when `svg_text` feature flag is enabled
-        #[allow(unused_mut)]
+        #[allow(unused_mut, clippy::allow_attributes)]
         let mut options = resvg::usvg::Options::default();
 
         #[cfg(feature = "svg_text")]

crates/egui_extras/src/loaders/webp_loader.rs

@@ -5,7 +5,7 @@ use egui::{
     mutex::Mutex,
     ColorImage, FrameDurations, Id,
 };
-use image::{codecs::webp::WebPDecoder, AnimationDecoder as _, ColorType, ImageDecoder, Rgba};
+use image::{codecs::webp::WebPDecoder, AnimationDecoder as _, ColorType, ImageDecoder as _, Rgba};
 use std::{io::Cursor, mem::size_of, sync::Arc, time::Duration};
 
 #[derive(Clone)]

crates/egui_extras/src/syntax_highlighting.rs

@@ -33,7 +33,7 @@ pub fn highlight(
     // performing it at a separate thread (ctx, ctx.style()) can be used and when ui is available
     // (ui.ctx(), ui.style()) can be used
 
-    #[allow(non_local_definitions)]
+    #[expect(non_local_definitions)]
     impl egui::cache::ComputerMut<(&egui::FontId, &CodeTheme, &str, &str), LayoutJob> for Highlighter {
         fn compute(
             &mut self,
@@ -285,7 +285,7 @@ impl CodeTheme {
 impl CodeTheme {
     // The syntect version takes it by value. This could be avoided by specializing the from_style
     // function, but at the cost of more code duplication.
-    #[allow(clippy::needless_pass_by_value)]
+    #[expect(clippy::needless_pass_by_value)]
     fn dark_with_font_id(font_id: egui::FontId) -> Self {
         use egui::{Color32, TextFormat};
         Self {
@@ -302,7 +302,7 @@ impl CodeTheme {
     }
 
     // The syntect version takes it by value
-    #[allow(clippy::needless_pass_by_value)]
+    #[expect(clippy::needless_pass_by_value)]
     fn light_with_font_id(font_id: egui::FontId) -> Self {
         use egui::{Color32, TextFormat};
         Self {
@@ -413,7 +413,6 @@ impl Default for Highlighter {
 }
 
 impl Highlighter {
-    #[allow(clippy::unused_self, clippy::unnecessary_wraps)]
     fn highlight(
         &self,
         font_id: egui::FontId,
@@ -512,7 +511,7 @@ struct Highlighter {}
 
 #[cfg(not(feature = "syntect"))]
 impl Highlighter {
-    #[allow(clippy::unused_self, clippy::unnecessary_wraps)]
+    #[expect(clippy::unused_self, clippy::unnecessary_wraps)]
     fn highlight_impl(
         &self,
         theme: &CodeTheme,